Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465878 | Process for producing 4',4-dihydroxydiphenyl | Takeshi Hashimoto, Terumasa Akashi | 1984-08-14 |
| 4382896 | Process for producing 4,4'-diphenyldisulfonic acid and its monopotassium salt | Takeshi Hashimoto, Shunsaku Tanaka, Katsuhiko Sato | 1983-05-10 |